import java.util.Scanner;

public class Q5_1 {

	public static void main(String[] args) {
		Scanner in = new Scanner(System.in);
		
		while (in.hasNextInt()) {
			int a=in.nextInt();
			int b=in.nextInt();
			if(Math.abs(a)<=1000)
				System.out.println(a=a+b);
			else
				System.out.println("a<=1000");
		}
	}
}